Watch Supernatural Season 6 Episode 22: The Man Who Knew Too Much

Second hours Supernatural Season 6 finale, the memory-blocking wall inside of Sam’s head that keeps his darkest memories from him comes crashing down and he struggles to deal with the consequences.

Dedicated primarily to Sam, will have the wall in his head come tumbling down. All hell breaks loose, but Dean and Bobby are, for once, at a total loss on how to help him and are forced to stand by and do nothing while Sam breaks. The Man Who Knew Too Much” airing Friday, May 20 starting at 8:00 P.M. on The CW Television Network.